Building structure



Nov. 19, 1929. v F. M. vENzlE 1,735,886

BUILDING STRUCTURE Filed Feb. 18, 1929 2 Sheets-Sheet 1 INVENTOR. F/PLDERICKM lbs/v2 ATTORNEY BY zz Nov. 19, 1929. F. M; VENZIE BUILDING STRUCTURE z shuts-sheet 2 Filed Feb. 18, 1929 1 N V EN TOR. I FREDERICK M. VEA/Z/E,

TTORNEY v its under surface.

Patented 7 Nov. 19, 1929 UNITED STATES PATT FFICE FREDERICK M. VEN'ZIE, or rHi ADELrHIA, PENNSYLVANIA.

BUILDING STRUCTURE Application filed February 18, 1929. "Serial No. 340,863. I

'This invention relates to a building construction andparticularly to a ceiling composed of a precast slab of plastic material.

The invention has for one object to provide a precast ceiling slab whichis constructed tobe suspended from the metal floor frame of the building, which can beplaced in'position in a minimum time, which cooperates with adjacent slabs to form a flush ceiling, which efficiently protects the metal floor frame from fire below the same, andwhich provides for aplastic key for the plaster coat applied to A further object ofthe present invention is to provide a pre-cast ceiling slab having a cut-away portion for resting upon a hanger angularly formed reinforcing members having hook-like portions. projected into a out away portion of the slab, whereby the hooklike portions of adjacent slabs may be secured together by means of tie-wires.

A still further object of the present invention is to provide for an- I-beam, a pair'of sheet-'metal clips which are positioned upon the lower rail of the beam so as to receive the ends. of channel irons from which channel irons the slabs of the invention are suspended.

Other and further objectsYnotat this time appearing willybe described hereinafter.

* The invention consists of the novel con- 'struction' hereinafter described and finally claimed;

The nature, characteristic features and scope of-the invention will be more fully understood from the following description taken in connectionwith the accompanying drawings-forming part hereof, and in which:

Fig. 1, is a top or plan view of several slabs constructed in accordance with the invention from which they are suspended.

Fig. 2, is a vie'wtaken approximately upon the line 2-2 of Fig. 1,. but showing parts from whichthe slabs are suspended.

Fig.3, is aviewin section taken upon the line as of Fig. 2;

Fig. 4, is a view in perspective the reinforcing members shown hand side of Figs. 1 and 2. r V

Fig.5, is a similar view of one of the anchors shown at the left hand sideof Figs. 1 and 2. J i

of one of at the right Fig. 6, is a similar View of one of the hang 1 ers shown in Fig. Fig. 7, is a similar view of one shown in Fig. 3. a

For the purpose of illustrating my invention I have shown inthe accompanying drawings one form thereof which is at present preferred by me, since thesame has been found in practice to give satisfactory and reliable results, although it is to be understoodthat of the clips the various instrumentalities of which my in-v vention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.

Fig. 3. The lower ledges of the 'I-beam each I have mounted thereon a clip 6, see; Figs. 3 and 7, a description of which will now b'egiven, particular reference being had to Fig. 7 The clip 6 is stamped from a single piece of sheet metal and comprises a pair of vertical strips 8 cut away at 9 central thereof. 7 The stripe at their bottoms arebentfirst outwardly at 10, then downwardly. at 11, and thence inwardly at 12 to form a U-shaped socket for engaging over the lower ledge of an I-beam, 1, seeFig. 3. The-upper parts of the strips 8 terminatein tabs 13 bent. over in horizontal fashion. The ends of the channel irons: 2

are fitted between the tabs 13 and the parts 10 of :the clips 6, see Fig. 3. A description will now be give'n of the pre- 7 1 cast. slabs after which the manner of their In the drawings, the floor frame comprises I The chanwire structure having. a lateral portion .17-

which extends along'the major part of'the flange 15. Extended at right angles to the 1 co-extenswe WltlLSiLld flange and having at its other end a pair of spaced, longitudinally part 17 is a pair of short sections 18 depending from each of which at an acute :angleis a section 19 from each of which sections extends-a bottom section 20 whichparallel the sections 18. The sections 20 each terminates in a hook-like. end 21 which projects into the cut away part 16 of a slab'l, see Fig. 2. The opposite end of a slab is provided with a'pair of spaced,icut away portions 22, see

f ent of the suspension; flange and suspens on Fig.1. .Embedded in a slab 1' are a pair 0 anchors having hook-like partsprojected into said cutaway portions'22. In Fig. 5 there I is shown one oftheselanchors which comprises a wire structure having a section .23

' withwother sections. 24'formed at. right angles thereto, each section 24 terminating in a foot'25.

A description will now be given of the manner of positioning the slabsl'to thechannel irons 2. Referring first to the left hand side of Fig. 2, and to: Fig. 3, each slab 1 is sup ported atadjacent ends by. means of clips, best seen in Fig.6. Each clipcomprisesa singlepiece of wire bent in the following: A horizontal bar26 is bent upwardly to provide vertical portions 27cwhich are-bent over in a horizontal manner to provide top bars 28 which: extend at right anglesv to the, lower bar 26. The top bars 28 in turn arebent downwardly to form vertical portions 29 whichwparallel the'vertical portions 27 and terminate in horizontal hooks 30. In. positioning for example three slabs the clip just described is fitted over a channeliron 2, with the top .bar 28 seated upon the top of the channel iron. The parts 23 of one of the slabs are then fitted over the hooks 30 of the clipand thehooks 25 of'the adjacent slab fitted over the bottom bar 26of the clip.

This arrangement is best seen in Fig.2. Referring now to the right hand side of Fig. 2 the opposed ends ofthe slabsl which are flanged are positioned by placing the flanges 15' upon the ribs of the'beam 3-, and securing togetherthe hook ends 21 of the wire member shown in Fig.4 by means of'tie-wires 31.

'The space between the ends of adjacent'slabs is then, filled with 'cementitious :material 32.

"By the above arrangement, construction, and

combination of parts I am enabled to suspend the slabs 1 from I-b'eams, channelirons and other metal ceiling supporting 5 structures without in any way usingfor the purpose the conventional reinforcing rods; extended; lonconventional reinforcing rods 33, which is important since by the employment of independent devices for suspension purpose undue stress and strain is not imparted to the laterally extended flange for" resting upon a beam, saidslab having a'cut-away portion extended metal suspension members anchored in said slab at. an inclination. to the upper surface of the slab, and having their outer ends projectedinto cut-away portions of theslah-for beam attachment,-and spaced gitudina'lly through said slab and-independmembers. I

'12. :A pre-castslab having atpneend: inlaterally extended flange V for, resting.upon a beam, an; angular member; anchored in said slab, the lateral partof which reinforces said flange and longitudinal partsof which; ex-

said slab having-a cut-away. portion-co-extensive with said flange and'having; at its other end a pair. of spaced, longitudinally extended ,metal suspension meinbers anchored in saidslab at an inclination to the upper surface of the slab and having their =1.

, av tie-wire connecting acent hooks of said angular members.

5. In combinationa slab structure as. de-

scribed in claim 2, characterizedby a channel iron andan inverted; T-beam, a clip suspended from said channel iron, which clip tend beyon'd saidslab in the form ofhooks,

has hooked'relation with the-inclined, an-

verted T-shaped beam.

.- FREDERICK VENZIE.

chored suspension members of adjacent slabs, 

